Nemilitp_Amruit 2.0 2022-2023

Drilling of Borewells anywhere in Tamilnadu including transportation from one place to another with in Tamilnadu in alluvial soil sedimentary strata of clay and sand stone shale pebbles boulders etc. By first taking a pilot bore of 140mm/150mm dia and then enlarging to required diameter direct or reverse rotary mud circulation method using rotary rigs fuel, labour and drilling bentonite and water required for drilling at site.

Reaming 140/150 mm dia pilot bore to 300mm dia bore as directed by the Engineer.

Labour charges for inserting PVC casing pipes assembly (with slots or without slots) in the drilled hole including jointing the pipes with PVC couplers with cement paste etc., complete supply and packing the annular space with pebbles of size and quality as approved by the Engineer. TWAD SoR P.No - 304

Charges for developing the Borewell with air compressor of 600 CFM capacity (Minimum 8 Hours) including transportation, labour and fuel charges for compressor and conducting yield test by 'V' Notch method.etc complete as directed by the Engineer. TWAD SoR P.No - 305

Supplying of PVC CASING PIPE AS PER IS 12818 / 2010 200 mm dia CM TWAD SoR P.No - 22(PLAIN PVC CASING PIPE)

Labour charges for the erection of submersible pumpset in borewell/open well including fixing and jointing submersible cable with proper clamps upto the starter to required depth and also fixing of riser pipes to the required depth valves erection clamps, pressure gauges upto the exterior wall of pump room and erection of panel board consisting of TPICN switches starter, voltmeter, Ammeter, three pilot (indicating) lamps capacitor single phasing preventor, water level guard and laying and jointing the cables and twin earthing as per IE rules etc., complete and testing the pumpset and trail run for 10 days. TWAD SoR P.No - 308

Levelling course with P.C.C 1:4:8 (one cement, four sand and eigth course aggregate) using 40 mm H.B.G stone including mixing concrete, laying, curing and compacting of concrete etc., complete and as directed by the Departmental Engineers. TP Data

Brick work in CM 1:5 (one cement and six sand) using country bricks of size 8.75" X 4.25" X 2.00" including cost of all materials, labour charges, curing etc., complete for Superstructure and as directed Departmental Engineers. TP Data

Plastering with CM 1:5 (one cement and five sand) 12mm thick including cost of materials, labour charges for finishing, curing etc., complete and as directed by dept officers. TP Data

Floor finsihing with CM 1:3(one cement and three sand) 20mm thick including cost of materials, labour charges for finishing, curing etc., complete and as directed by Departmental Engineers. TP Data

Special ceiling plastering with CM 1:3 (one cement and three sand) 10 mm thick including labour charges for mixing, finishing , curing etc., complete and as directed by Departmental Engineers. TP Data

White washing two coats using fine screened shell lime for the new plastered surface for inner and outer side of the room including the cost of materials labour charges etc., complete and as directed by Departmental Engineers. TP Data

Colour washing two coats with approved colour and quality over two coats of white washing for outside of the room including the cost of materials, labour charges, cleaning and preparation of the surface and curing etc., complete and as directed by Departmental Engineers. TP Data

Supplying and fixing of steel Doors two leaves including all cost , with fitting etc complete as directed by dept officers (the design should be got approved by the SE before supply & fixing)1x2.1m TP Data door and window

Weathering course with broken Brick Jelly of 20 mm size in pure slaked lime (no sand to be used) over RCC Roof slab with proportion being 32:12 1/2 for required depth of 80mm thickness over the roof slab as required well beaten with wooden beaters for giving required slope complying with standard specification etc., complete and as directed by dept officers.

Terrace Flooring with two course of flat tiles using of size 200mmx200mmx20mm laid in CM 1:3(one cement and three sand) mixed with crude oil to 10% by weight of cement and pointed neatly with the same oiled morter etc., complete complying with standard specification and as directed by dept officers. TP Data

Wiring with 2x4 sqmm(56/0.3) PVC insulated SC unsheathed Cu.Conductor cable of 1100V grade in suitable pipe on wall and ceiling with PVC accessories with 150 mm x 100 mm x 63mm TW switch box for 15 A 3 pin non inter locking CS plug with painting of suitable colour, with continuous earth wire connection of 14 SWG TC wire for open PVC power plug point. (SD-38)

Supply and fixing of 1200 mm (48") AC ceiling fan complete with stepped electronic 300W regulator with 1meter down rod on the existing clamp. (SD-106)

Supply and Fixing of WT Bulk Head Fitting with guard (Philips / Bajaj / K. Lite) Suitable for 11W CFL Lamp with CFL (SD-82)

Supply and fixng of TNEB Meter Board suitable for 3 Phases 200A service connection made up of suitable angle iron frame work of size 3 feet x 2 feet using angle iron of size 1 1/2" x 1 1/2" x 1/4" rigidly fixed on wall covered with hylem sheet of size 3 feet x 2 feet of 12mm thickness with necessary bolts and nuts supports and supply and fixing of 3 Nos 200A fuse units (500V) 1 No. Neutral link, copper earth flat of size 1" x 1/4" with inter connection of EB meter to fuse units by 19/16 PVC insulated copper wire with earth connection complete - SD 130

Supply & Delivery to site of the following types of specials such as Tees, Tapers. Bends, endcaps etc as per specification. TWAD SoR P.No - 52

Supply and delivery of DI D/F Gate sluice valves (soft seated) resilient seated soft sealing Gate Valves(Sluice Valves) with body Bonnet of Ductile cast iron ofGrade GGG 40 or equivalent grade,Wedge fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 ORing protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163-89/ISI 4846-2000/DIN 3202 F4. All the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. All the valves are to be compatible for buried application withpressure rating PN 10/16 TWAD SoR P.No - 71

Manufacture, Supply and Delivery of Tamper proof DI single chamber double orifice, triple function (ventilating, admitting and venting during operation) air release valves with pressure range from PN 1.0 to 2.5 with body and cover made of Ductile Iron of Grade GGG 40 or equivalent grade conforming to IS 1865 with Food Grade Epoxy Powder coating(EP-P) inside and for outside of colour blue RAL 5005. All internal parts such as float, shell etc.,cover bolts, made of Austenitic alloy steel of SS AISI 304/316. The float shall be made of Polytetrafluroethylene/ Austenitic alloy steel of AISI 304/316. Gaskets and seals of EPDM / Neoprene rubber for TWAD Board works anywhere in Tamil Nadu and with 5 years TWAD SoR P.No - 71

Electromagnetic Flow Meter shall be a velocity sensing Electromagnetic type, microprocessor based signal converter, sealed housing, flanged tube meter for 1.0 Mpa working pressure, manufactured to highest standard available for mag-meters, equipped with minimum six digit digital totalizers, reading in different units (Kiloliters / Cubic meter) and shall be accurate within 0.5% of Measured value, shall operate within a range of 0.3 m/sec to 4 m/sec and be constructed as follows: Meter tube (Sensor) shall be fabricated from stainless steel tube and use class PN10 flat face carbon steel flanges in accordance with IS 1538. These flanges shall be welded to the flow tube. The internal and external of the meter tube shall be blasted to near white and lined with hard rubber/ Polyurethrene/ PTFE preferably by SBR or EPDM. Meter tube shall have a constant nominal inside diameter offering no obstruction to the flow.The accuracy should be inclusive of linearity, hysteresis, repeatability, temperature and pressure effects. Coil Housing shall be fabricated from stainless steel (SS304)/ Die cast Aluminium/ Carbon steel with anticorriosive paint for corrosion resistance and welded to the tube providing a completely sealed environment for all coils, electrode connections and wiring harness capable of submerged or buried operation with IP68 Protection. Signal Converter shall be pulsed DC coil excitation type with auto zeroing. The signal converter shall be remotely mounted away from the meter. The converter shall indicate direction of flow and provide a flow rate indication and a total of flow volume for both forward and reverse directions. The converter shall provide an isolated 4-20 mA output into minimum 500-ohm load and a frequency output of a maximum of 0-10 KHZ and a scaled pulse output. The microprocessor based signal converter shall have a self-diagnostic test mode and a backlit display that continuously displays “Rate of Flow” and “Total Volume”.Converter shall be supplied with a programmable low flow drop out, higher flow and empty pipe zero return. The signal converter housing should be die-cast aluminum with glass window. The converter cum transmitter should be fully programmable from the front facia. The programming should be user friendly, self-prompting menu driven. Flow meter test calibration certificate from FCRI, flow test lab / NABL accredited lab to be furnished.

Earthwork - Excavating and storingg on bank with an initial lead of 10 m and initial lift of 2 m in trenches for laying of pipes etc. all complete as per standard specifications and as directed by the Departmental Engineer. Ordinary Soil - such as Hard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with small boulders and hard gravelly soil etc., TWAD SoR P.No - 295

Barricading work (Where the lines are in narrow width of municipality area,busy streets like Market, Bus-stand and in the Highways etc.) for laying ofpipe line using casurina poles at 1.50m center to center (8cm to 10cm dia.and 1.80m height) vertical with horizontal poles in two rows, painting thevertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including supplying, delivery and fixing of GI sheet (0.90m x 0.8mm thick) in the horizontal poles and fixing75mm dia. reflectors including earth work excavation for fixing verticalposts and finally removing and stacking the materials safely for further useetc., complete and as directed by dept officers. TWAD SoR No - 323

Lowering of DI pipes and specials carefully into the trench and laying to proper grade and alignment including labour charges, incidental and operational charges etc complete as per standard specifications and as directed by the Departmental Engineer. TWAD SOR P.No - 258

Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) TWAD SoR No - 261 & 262

Testing of pipes for water supply with hydraulic testing equipment by filling with water (including cost of water) and testing to recommended pressure in convenient stretches and attending the bursts if any occured during the test,excluding the cost of pipes but including other incidential and operational charges etc.,complete for the following diametres of pipes. TWAD SoR No - 270

Refilling or backfilling trenches with excavated soil after pipe laying in layers not exceeding 20 cm in depth, ramming and consolidation of each layer, watering etc. all complete as per standard specifications and as directed by the Departmental Engineer. TWAD SoR No - 295

Plain Cement Concrete 1:2:4 (one cement, two fine aggregates and four coarse aggregates) using 20mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc., complete as per standard specification Data

Construction of Brick work valve Chamber with M20 Grade concrete . The rate should include earth work excavation in various soils met with at the site of work, refilling the pit after the construction of the pit, PCC M10 for Blinding Concrete, Brick work in CM 1:5 and plastering with CM 1:5 - 12mm thick, cost of steel reinforcement fabrication charges, Cover slab with manhole cover etc., and fixing the valves in position inside the pit including laying, jointing of valves, HDPE pipes and specials including the cost of jointing materials such as bolts and nuts RI sheets washers etc., complete and as directed by the Departmental Engineer.

Earthwork - Excavating and storingg on bank with an initial lead of 10 m and initial lift of 2 m in trenches for laying of pipes etc. all complete as per standard specifications and as directed by the Departmental Engineer. Ordinary Soil - such as Hard stiff clay, stiff black cotton, hard red earth, shales, murram gravel, stoney earth and earth mixed with small boulders and hard gravelly soil etc., TWAD SoR No - 295

HDPE pipes from 90mm dia upto 160mm dia

HDPE Pipes of 180 mm diameter

200 mm Dia DI K7 pipes

Barricading work (Where, there is less traffic areas and broader roads etc.) for laying of pipe line using casurina poles at 1.50m center to center (8cm to 10cm dia and 1.80m height) vertical with horizontal poles in three rows including painting the vertical poles in the road facing sides with ready mix paint, tying the vertical and horizontal poles with coir rope including fixing charges and fixing 75mm diareflectors including earth work excavation for fixing vertical posts and finally removing and stacking the materials safely for further use etc., complete and as directed by Dept officers. TWAD SoR No - 323

For 90mm to 110mm dia (OD) HDPE pipes

For 125mm dia (OD) HDPE pipe

For 140mm dia (OD) HDPE pipe

For 160mm dia (OD) HDPE pipe

For 180mm dia (OD) HDPE pipe

Lowering of D.I Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the dept officers. TWAD SoR No - 258

Jointing HDPE Pipes and Specials of the following dia of pipes by butt fusion welding / electro fusion welding joints using fusion equipment as per ISO 21307-2011 and as per IS 7634 (part-2) : 2012 including cost of hire charges for butt fusion equipment power supply arrangements etc., complete as per directed byTWAD Board Officers. TWAD SoR P.No - 279

125 mm diameter pipes,Tees & Bends

140 mm diameter pipes,Tees & Bends

160 mm diameter pipes,Tees & Bends

180 mm diameter pipes,Tees & Bends

Jointing C.I/ D.I-S/S pipes and specials with rubber gaskets (tyton joint) including cost of lubricants. (including cost of jointing materials) TWAD SoR No - 261 & 262

HDPE Pipes of 90 mm diameter

HDPE Pipes of 110 mm diameter

HDPE Pipes of 125 mm diameter

HDPE Pipes of 140 mm diameter

HDPE Pipes of 160 mm diameter

HDPE Pipes of 180 mm diameter

200 mm Dia DI K7 pipes

HDPE Pipes of 90 mm diameter

HDPE Pipes of 110 mm diameter

HDPE Pipes of 125 mm diameter

HDPE Pipes of 140 mm diameter

HDPE Pipes of 160 mm diameter

HDPE Pipes of 180 mm diameter

200 mm Dia DI K7 pipes

80mm DI Sluice valve

100mm DI Sluice valve

150mm DI Sluice valve

200mm DI Sluice valve

Electromagnetic Flow Meter shall be a velocity sensing Electromagnetic type, microprocessor based signal converter, sealed housing, flanged tube meter for 1.0 Mpa working pressure, manufactured to highest standard available for mag-meters, equipped with minimum six digit digital totalizers, reading in different units (Kiloliters / Cubic meter) and shall be accurate within 0.5% of Measured value, shall operate within a range of 0.3 m/sec to 4 m/sec and be constructed as follows: Meter tube (Sensor) shall be fabricated from stainless steel tube and use class PN10 flat face carbon steel flanges in accordance with IS 1538. These flanges shall be welded to the flow tube. The internal and external of the meter tube shall be blasted to near white and lined with hard rubber/ Polyurethrene/ PTFE preferably by SBR or EPDM. Meter tube shall have a constant nominal inside diameter offering no obstruction to the flow. The accuracy should be inclusive of linearity, hysteresis, repeatability, temperature and pressure effects. Coil Housing shall be fabricated from stainless steel (SS304)/ Die cast Aluminium/ Carbon steel with anticorriosive paint for corrosion resistance and welded to the tube providing a completely sealed environment for all coils, electrode connections and wiring harness capable of submerged or buried operation with IP68 Protection. Signal Converter shall be pulsed DC coil excitation type with auto zeroing. The signal converter shall be remotely mounted away from the meter. The converter shall indicate direction of flow and provide a flow rate indication and a total of flow volume for both forward and reverse directions. The converter shall provide an isolated 4-20 mA output into minimum 500-ohm load and a frequency output of a maximum of 0-10 KHZ and a scaled pulse output. The microprocessor based signal converter shall have a self-diagnostic test mode and a backlit display that continuously displays “Rate of Flow” and “Total Volume”. Converter shall be supplied with a programmable low flow drop out, higher flow and empty pipe zero return. The signal converter housing should be die-cast aluminum with glass window. The converter cum transmitter should be fully programmable from the front facia. The programming should be user friendly, self-prompting menu driven. Flow meter test calibration certificate from FCRI, flow test lab / NABL accredited lab to be furnished. TWAD SoR P.No - 87

Supply & delivery of following DUCTILE IRON SPECIALS AS PER IS 9523/2000 for valve in the distribution system as per IS standards TWAD SoR P.No - 52

Sluice valve Chamber Size 1.0m x 1.0m x 1.5m

Electromagnetic flow meter chamber Size 1.0m x 1.0m x 1.5m

Providing House service connection with suitable dia non corrosive engineering plastic moulded Clamp Saddle with SS 304 threaded metal inserted for tapping outlet suiting for ½”, 3/4” &1” clear bore and with wide plastic strap (Engineering Plastic) with SS 304 suitable bolts & nuts. Saddle to have sealing of Thermo plastic elastomeric (TPE) material around including road cutting, replacement of utilities, providing house service connection, refilling, restoration of roads / drains, testing etc complete with the following materials Data

Inlet pipe connection for 12m staging

Inlet pipe connection for 16m staging

Supply, conveying and fixing following GI pipes as per latest revision of IS 1239 with ISI markings TWAD SoR P.No - 44

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